Everything You Need to Know about Narcissists, Psychopaths, and Abuse - click on this link: http://www.narcissistic-abuse.com/faq1.html
The narcissist's True Self is introverted and dysfunctional. In healthy people, Ego functions are generated from the inside, from the Ego. In narcissists, the Ego is dormant, comatose. The narcissist needs the input of and feedback from the outside world (from others) in order to perform the most basic Ego functions (e.g., "recognizing" of the world, setting boundaries, forming a self-definition or identity, differentiation, self-esteem, and regulating his sense of self-worth). This input or feedback is known as narcissistic supply” .Only the False Self gets in touch with the world. The True Self is isolated, repressed, unconscious, a shadow.
The False Self is, therefore, a kind of “hive self” or “swarm self”. It is a collage of reflections, a patchwork of outsourced information, titbits garnered from the narcissist’s interlocutors and laboriously cohered and assembled so as to uphold and buttress the narcissist’s inflated, fantastic, and grandiose self-image.
In healthy, normal people ego functions are strictly internal processes. In the narcissist, ego functions are imported from the surroundings, they are thoroughly external. Consequently, the narcissist often confuses his inner mental-psychological landscape with the outside world. He tends to fuse and merge his mind and his milieu. He regards significant others and sources of supply as mere extensions of himself and he appropriates them because they fulfil crucial internal roles and, as a result, are perceived by him to be sheer internal objects, devoid of an objective, external, and autonomous existence.
(From the book "Malignant Self-love: Narcissism Revisited" by Sam Vaknin - Click on this link to purchase the print book, or 16 e-books, or 3 DVDs with 16 hours of video lectures on narcissists, psychopaths, and abuse in relationships: http://www.narcissistic-abuse.com/thebook.html)